#include <iostream>
#include <string>
using namespace std;
string s, t;
int main()
{
cin >> s >> t;
int n = s.size();
int k = t.size();
if (k == 1) {
bool ouc[2];
for (int i = 0; i < n; i++) ouc[s[i]-'0'] = true;
if (ouc[t[0]-'0']) cout << -1;
else cout << 0;
}
else if (k == 2) {
if (t[0] != t[1]) {
if (t[0] == '1') {
for (int i = 0; i < n; i++) s[i] = s[i] == '0' ? '1' : '0';
//11..00
}
int ans = 0;
for (int i = n - 1; i >= 0; i--) {
if (s[i] == '1') continue;
while (i > 0 && s[i-1] == '0') --i;
ans++;
}
if (s[n-1] == '0') --ans;
cout << ans;
}
}
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
3 ms |
612 KB |
Output is correct |
4 |
Correct |
3 ms |
612 KB |
Output is correct |
5 |
Correct |
3 ms |
612 KB |
Output is correct |
6 |
Correct |
3 ms |
612 KB |
Output is correct |
7 |
Correct |
3 ms |
612 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
3 ms |
612 KB |
Output is correct |
7 |
Correct |
3 ms |
612 KB |
Output is correct |
8 |
Correct |
4 ms |
740 KB |
Output is correct |
9 |
Correct |
4 ms |
656 KB |
Output is correct |
10 |
Correct |
4 ms |
596 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
3 ms |
612 KB |
Output is correct |
7 |
Correct |
3 ms |
612 KB |
Output is correct |
8 |
Correct |
4 ms |
740 KB |
Output is correct |
9 |
Correct |
4 ms |
656 KB |
Output is correct |
10 |
Correct |
4 ms |
596 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
16 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |